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Check substring exists in a string in C
...
if(strstr(sent, word) != NULL) {
/* ... */
}
Note that strstr returns a pointer to the start of the word in sent if the word word is found.
sha...
Can you break from a Groovy “each” closure?
...t an "each" without throwing an exception. You likely want a classic loop if you want the break to abort under a particular condition.
Alternatively, you could use a "find" closure instead of an each and return true when you would have done a break.
This example will abort before processing the w...
How can I check if a view is visible or not in Android? [duplicate]
...sn't take up the "spot".
So to answer your question, you're looking for:
if (myImageView.getVisibility() == View.VISIBLE) {
// Its visible
} else {
// Either gone or invisible
}
share
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i...
Controlling the screenshot in the iOS 7 multitasking switcher
... any sensitive user information, such as passwords or credit card numbers. If your interface contains such information, remove it from your views when entering the background. Also, dismiss alerts, temporary interfaces, and system view controllers that obscure your app’s content. The snapshot repr...
What does the “assert” keyword do? [duplicate]
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If you launch your program with -enableassertions (or -ea for short) then this statement
assert cond;
is equivalent to
if (!cond)
throw new AssertionError();
If you launch your program without this option, the asser...
How to find all combinations of coins when given some dollar value
...rful book Generatingfunctionology: math.upenn.edu/~wilf/DownldGF.html) and if you mean an expression like (1+√5)^n, it takes Ω(log n) time to compute, not constant time.
– ShreevatsaR
Jul 10 '09 at 18:33
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What is the 'instanceof' operator used for in Java?
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instanceof keyword is a binary operator used to test if an object (instance) is a subtype of a given Type.
Imagine:
interface Domestic {}
class Animal {}
class Dog extends Animal implements Domestic {}
class Cat extends Animal implements Domestic {}
Imagine a dog object, cr...
Implement Stack using Two Queues
...last enqueued element in Queue 1. But that is the last pushed element only if you had queued earlier. If you popped multiple times in succession, that need not be true.
– user127.0.0.1
Apr 24 '12 at 6:01
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What are the undocumented features and limitations of the Windows FINDSTR command?
...ame of the file containing the matching line. The file name is not printed if the request was explicitly for a single file, or if searching piped input or redirected input. When printed, the fileName will always include any path information provided. Additional path information will be added if the ...
How to check type of variable in Java?
...uble) these are all primitives, and there are no sub-types of them. Thus, if you declare a variable to be an int:
int x;
You can be sure it will only ever hold int values.
If you declared a variable to be a List, however, it is possible that the variable will hold sub-types of List. Examples o...